孤独，不一定不快乐。

Alone, not necessarily not happy.

youdao

孤单不一定不快乐。

Maybe keep alone is not unhappy.

youdao

面对不一定最难过；孤独，不一定不快乐；得到，不一定能长久。

In the face of not necessarily the most sad; Lonely, not necessarily not happy; Can get, not necessarily for a long time.

youdao

面对不一定最难过；孤独，不一定不快乐；得到，不一定能长久。

In the face of not necessarily the most sad; Lonely, not necessarily not happy; Can get, not necessarily for a long time.

youdao